2001 TOYOTA AVALON light

I21287
Connector ºAº Connector ºBº
I21288
Z14186
1
2 351 2
3 5
- BODY ELECTRICALSEAT HEATER SYSTEM
BE-123
1727 Author
: Date
:
2001 AVALON (RM808U)
3. INSPECT SEAT CUSHION HEATER CONTINUITY
(a) Disconnect the seat back heater from the seat cushion
heater.
(b) Heat the 2 thermostats with a light and check that there
is no continuity above 50 °C (122 °F) between terminals
A1 and B2, A2 and B1.
(c) Cool the 2 thermostats below 40 °C (104 °F) between ter-
minals A1 and B2, A2 and B1.
If continuity is not as specified, replace the seat heater.
4. INSPECT SEAT BACK CONTINUITY
Check that there is continuity between terminals 1 and 2.
If continuity is not as specified, replace the seat back pad.
5. INSPECT IGNITION MAIN RELAY CONTINUITY
ConditionTester connectionSpecified condition
Constant1 - 2Continuity
Apply B+ between
terminals 1 and 2.3 - 5Continuity
If continuity is not as specified, replace the relay.

BE1DM-01
N18026
2
1
21
3
4 Free Pushed in
Free Pushed in w/o Cruise Control:
w/ Cruise Control:
I13416
BE-36
- BODY ELECTRICALSTOP LIGHT SYSTEM
1640 Author
: Date
:
2001 AVALON (RM808U)
INSPECTION
1. w/o Cruise Control:
INSPECT STOP LIGHT SWITCH CONTINUITY
Switch positionTester connectionSpecified condition
Switch pin free1 - 2Continuity
Switch pin pushed in1 - 2No continuity
If continuity is not as specified, replace the switch.
2. w/ Cruise Control:
INSPECT STOP LIGHT SWITCH CONTINUITY
Switch positionTester connectionSpecified condition
Switch pin free1 - 2Continuity
Switch pin pushed in1 - 2No continuity
Switch pin free3 - 4No continuity
Switch pin pushed in3 - 4Continuity
If continuity is not as specified, replace the switch.
3. INSPECT HI- MOUNTED STOP LIGHT ASSEMBLY
CONTINUITY
Using the ohmmeter,check that continuity exists between termi-
nal 1 and terminal 2.
If continuity is not as specified,replace the light assembly or
bulb.

BE0I6-05
I12529
Stop Light Switch
Driver Side Junction Block

STOP Fuse
Light Failure Sensor
Stop Light
HI-Mounted Stop Light
- BODY ELECTRICALSTOP LIGHT SYSTEM
BE-35
1639 Author
: Date
:
2001 AVALON (RM808U)
STOP LIGHT SYSTEM
LOCATION

BE04Q-06
BE-2
- BODY ELECTRICALTROUBLESHOOTING
1606 Author
: Date
:
2001 AVALON (RM808U)
TROUBLESHOOTING
PROBLEM SYMPTOMS TABLE
POWER OUTLET
SymptomSuspect AreaSee page
Electric power source cannot be taken out of the power outlet11. PWR OUTLET No. 1, 2 Fuse
12.Wire Harness-
-
IGNITION SWITCH AND KEY UNLOCK WARNING SWITCH:
This system uses the multiplex communication system, so check diagnosis system of the multiplex commu-
nication system before checking the body control system.
HEADLIGHT AND TAILLIGHT SYSTEM:
This system uses the multiplex communication system, so check diagnosis system of the multiplex commu-
nication system before checking the body control system.
FOG LIGHT SYSTEM:
SymptomSuspect AreaSee page
Fog light does not light with light control SW HEAD.
(Headlight is normal)
1. FOG Fuse
2. Fog Light Relay
3. Fog Light Switch
4. Wire Harness-
BE-26
BE-26
-
Fog light does not light with light control SW HEAD.
(Headlight does not light)1. Other Parts*1
2. Wire Harness
-
-
Only one light does not light.1. Bulb
2. Wire Harness-
-
*1: Inspect Headlight System.
TURN SIGNAL AND HAZARD WARNING SYSTEM:
SymptomSuspect AreaSee page
ºHazardº and ºTurnº do not light up.
1. Hazard Warning Switch
2. Turn Signal Flasher
3. Wire HarnessBE-29
BE-29
-
The flashing frequency is abnormal.
1. Bulb
2. Turn Signal Switch
3. Wire Harness-
BE-29
-
Hazard warning light does not light up.
(Turn is normal.)1. HAZ Fuse
2. Wire Harness-
-
Hazard warning light does not light up in one direction.1. Hazard Warning Switch
2. Wire HarnessBE-29
-
*1Turn signal does not light up.
1. Ignition Switch
2. TURN Fuse
3. Turn Signal Switch
4. Wire HarnessBE-16
-
BE-29
-
*2Turn signal does not light up.
1. TURN Fuse
2. Turn Signal Switch
3. Wire Harness-
BE-29
-
Turn signal does not light up in one direction.1. Turn Signal Switch
2. Wire HarnessBE-29
-
Only one bulb does not light up.1. Bulb
2. Wire Harness-
-
*1: Combination Meter, Wiper and Washer do not operate.
*
2: Combination Meter, Wiper and Washer are normal.

- BODY ELECTRICALTROUBLESHOOTING
BE-3
1607 Author
: Date
:
2001 AVALON (RM808U)
INTERIOR LIGHT SYSTEM:
This system uses the multiplex communication system, so check diagnosis system of the multiplex commu-
nication system before checking the body control system.
BACK-UP LIGHT SYSTEM:
SymptomSuspect AreaSee page
Back-Up Light does not light up.
1. GAUGE Fuse
2. Ignition Switch
3. Park/Neutral Position Switch
4. Back-up Light Relay (Column Shift)
5. Bulb
6. Wire Harness-
BE-16
DI-199
BE-34
-
-
Back-Up Light remains always ON.
1. Park/Neutral Position Switch
2. Back-up Light Relay (Column Shift)
3. Wire HarnessDI-199
BE-34
-
Only one light does not light up.1. Bulb
2. Wire Harness-
-
STOP LIGHT SYSTEM:
SymptomSuspect AreaSee page
Stop light does not light up.
1. STOP Fuse
2. GAUGE Fuse
3. Stop Light Switch
4. Light Failure Sensor
5. Wire Harness-
-
BE-36
BE-53
-
Only one light always lights up.1. Wire Harness-
Only one light does not light.1. Bulb
2. Wire Harness-
-
WIPER AND WASHER SYSTEM:
SymptomSuspect AreaSee page
Wiper and washers do not operate.
1. IG 1 Relay
2. WIPER Fuse
3. Wiper Switch
4. Wiper Motor
5. Wire Harness-
-
BE-38
BE-38
-
Wipers do not operate in LO or HI.
1. Wiper Switch
2. Wiper Motor
3. Wire HarnessBE-38
BE-38
-
Wipers do not operate in INT.
1. Wiper Fuse
2. Wiper Switch
3. Wiper Motor
4. Wire Harness-
BE-38
BE-38
-
Washer motor does not operate.
1. Washer Switch
2. Washer Motor
3. Wire HarnessBE-38
BE-38
-
Wipers do not operate when washer switch in ON.1. Washer Motor
2. Wire HarnessBE-38
-
Washer fluid does not operate.1. Washer Hose and Nozzle-

In wiper switch HI position, the wiper blade is in contact with
the body.

When the wiper switch is OFF, the wiper blade does not
retract or the retract position is wrong.1. *1Wiper Switch
2. Wire HarnessBE-38
-
*1: Inspect wiper arm and blade set position

BE-4
- BODY ELECTRICALTROUBLESHOOTING
1608 Author
: Date
:
2001 AVALON (RM808U)
COMBINATION METER (Meter, Gauges and Illumination):
SymptomSuspect AreaSee page
Tachometer, Fuel Gauge and Engine Coolant Temperature Gauge
do not operate.
1. ECU-B Fuse
2. ECU-IG No. 2 Fuse
3. Meter Circuit Plate
4. Wire Harness
5. Multi Display-
-
BE-43
-
-
Speedometer does not operate.
1. Vehicle Speed Sensor (ABS - ECU)
2. Meter Circuit Plate
3. Wire Harness
4. Multi DisplayBE-53
BE-43
-
-
Tachometer does not operate.
1. EFI - ECU
2. Meter Circuit Plate
3. Wire Harness
4. Multi Display-
BE-43
-
-
Fuel Gauge does not operate or abnormal operation.
1. Fuel Receiver Gauge
2. Fuel Sender Gauge
3. Meter Circuit Plate
4. Wire HarnessBE-53
BE-53
BE-43
-
Engine Coolant Temperature Gauge does not operate or abnormal
operation.
1. Engine Coolant Temperature Receiver Gauge
2. Engine Coolant Temperature Sender Gauge
3. Meter Circuit Plate
4. Wire HarnessBE-53
BE-53
BE-43
-
All illumination lights do not light up.
1. Bulb
2. PANEL Fuse
3. Light Control Rheostat
4. Wire Harness-
-
BE-53
-
Brightness does not change even when rheostat turned.
1. Bulb
2. Rheostat
3. Wire Harness-
-
-
Only one illumination light does not light up.1. Bulb
2. Wire Harness-
-
COMBINATION METER (Warning Lights):
SymptomSuspect AreaSee page
Warning lights do not light up. (Except Discharge, Open Door and
SRS)
1. Bulb
2. GAUGE No. 1 Fuse
3. Meter Circuit Plate
4. Wire Harness-
-
BE-53
-
Low Oil Pressure warning light does not light up.
1. Multi Display
2. Bulb
3. Low Oil Pressure Warning Switch
4. Meter Circuit Plate
5. Wire Harness-
-
BE-53
BE-43
-
Fuel Level warning light does not light up.
1. Multi Display
2. Bulb
3. Fuel Sender Gause
4. Meter Circuit Plate
5. Wire Harness-
-
BE-53
BE-43
-
ABS warning light does not light up.
1. Bulb
2. ABS ECU
3. Wire Harness-
DI-210
-

- BODY ELECTRICALTROUBLESHOOTING
BE-5
1609 Author
: Date
:
2001 AVALON (RM808U) Seat Belt warning light does not light up.
1. Bulb
2. Body Control System
3. Meter Circuit Plate
4. Wire Harness-
DI-615
BE-53
-
Discharge warning light does not light up.
1. AM2 - Fuse
2. Bulb
3. Meter Circuit Plate
4. Wire Harness
5. Generator-
-
BE-53
-
CH-9
Light Failure warning light does not light up.
1. Bulb
2. Light Failure Sensor
3. Bulb Check Relay
4. Wire Harness
5. Taillight System-
BE-53
BE-53
-
BE-2
Brake warning light does not light up.
1. Bulb
2. Parking Brake Switch
3. Brake Fluid Level Warning Switch
4. Bulb Check Relay
5. Meter Circuit Plate
6. Wire Harness-
BE-53
BE-53
BE-53
BE-43
-
SRS Warning light does not light up.
1. AM2 - Fuse
2. Bulb
3. Airbag Sensor Assembly
4. Meter Circuit Plate
5. Wire Harness-
-
RS-62
RS-67
BE-43
Open Door warning light does not light up.
1. DOME Fuse
2. Bulb
3. Door Courtesy Switch
4. Body Control System
5. Meter Circuit Plate
6. Wire Harness-
-
BE-31
DI-615
BE-43
-
Washer Level warning light does not light up.
1. Bulb
2. Washer Fluid Level Warning Switch
3. Meter Circuit Plate
4. Wire Harness-
BE-53
BE-43
-
COMBINATION METER (Indicator Lights):
SymptomSuspect AreaSee page
O/D OFF indicator light does not light up.
1. Bulb
2. O/D OFF Switch
3. ECM
4. Meter Circuit Plate
5. Wire Harness-
DI-203
DI-1
BE-43
-
Cruise Control indicator light does not light up.
1. Bulb
2. Cruise Control ECU
3. Meter Circuit Plate
4. Wire Harness-
DI-549
BE-43
-
High beam indicator light does not light up.
1. Bulb and Taillight
2. Headlight System
3. Meter Circuit Plate
4. Wire Harness-
BE-2
BE-43
-
Turn indicator light does not light up.
1. Bulb
2. Turn Signal and Hazard Warning System
3. Meter Circuit Plate
4. Wire Harness-
BE-2
BE-43
-

BE-6
- BODY ELECTRICALTROUBLESHOOTING
1610 Author
: Date
:
2001 AVALON (RM808U) Shift indicator lights do not light up.
1. Bulb
2. Park/Neutral Position Switch
3. Meter Circuit Plate
4. Wire Harness-
DI-199
BE-43
-
Only one shift indicator does not light up.1. Bulb
2. Meter Circuit Plate-
BE-43
Malfunction indicator light does not light up.
1. Bulb
2. ECM
3. Meter Circuit Plate
4. Wire Harness-
DI-1
BE-43
-
SLIP indicator light does not light up.
1. Bulb
2. ABS & TRAC ECU
3. Meter Circuit Plate
4. Wire Harness-
DI-250
BE-43
-
TRAC OFF indicator light does not light up.
1. Bulb
2. ABS & TRAC ECU
3. Meter Circuit Plate
4. Wire Harness-
DI-250
BE-43
-
Security indicator light does not light up.
1. LED
2. Theft Deterrent ECU
3. Meter Circuit Plate
4. Wire Harness-
DI-517
BE-43
-
Indicator lights do not light up. (Except Turn, Hi-beam and
security)1. GAUGE Fuse
2. Wire Harness-
-
DEFOGGER SYSTEM:
SymptomSuspect AreaSee page
All defogger systems do not operate.
1. SEAT HEATER Fuse
2. DEF Fuse
3. Defogger Relay
4. Defogger Switch
5. Wire Harness-
-
BE-67
DI-1
-
Rear window defogger does not operate.
1. Defogger Wire
2. Choke Coil
3. Wire HarnessBE-67
-
-
Mirror defogger does not operate.
1. MIR/HTR Fuse
2. Mirror Defogger
3. Wire Harness-
BE-67
-
POWER WINDOW CONTROL SYSTEM:
This system uses the multiplex communication system, so check diagnosis system of the multiplex commu-
nication system before checking the body control system.
POWER DOOR LOCK CONTROL SYSTEM:
This system uses the multiplex communication system, so check diagnosis system of the multiplex commu-
nication system before checking the body control system.